Positioning tool for splicing steel beam between top ends of two T-shaped steel stand columns

Abstract

The utility model discloses a positioning tool for splicing a steel beam between the top ends of two T-shaped steel stand columns. The problem of how to develop an efficient and convenient positioning tool for a connecting plate for splicing the T-shaped steel stand columns and an I-shaped steel beam is solved. The traditional splicing of a connecting plate and an I-shaped steel beam in the air is moved to the ground, so that bolt holes in the connecting plate and bolt holes in the two ends of the I-shaped steel beam are accurately butted in place. The accurate butt joint of the screw holes in the high-altitude connecting plate and the screw holes in the two web plates is greatly facilitated, and the construction progress is accelerated.

Description

Technical Field

[0001] The invention relates to a steel beam hoisting tool, in particular to a positioning tool used for splicing I-shaped steel beams between the top ends of adjacent T-shaped steel columns. Background Art

[0002] In recent years, there are more and more projects for constructing steel structure substation distribution rooms. The main frame of the substation distribution room adopts a large-span steel column frame structure. The existing large-span steel column frame construction process is: first install the two adjacent T-steel columns in place, and set an I-beam steel beam erection connection space between the I-beam steel beam sections on the upper part of the two T-steel columns; then, connect the four steel plate connecting plates to the two sides of the web at both ends of the spliced ​​I-beam steel beam (the connecting plate and the I-beam steel beam are connected together by bolts), and use a crane to hoist the spliced ​​I-beam steel beam with the connecting plate between the tops of the two steel columns. The construction workers remove the four connecting plates of the spliced ​​I-beam steel beam from the webs at both ends of the spliced ​​I-beam steel beam in the air, and the spliced ​​I-beam steel beam is controlled by the hoisting equipment to descend to the spliced ​​I-beam In the connection space of the steel beam erection, the spliced ​​I-shaped steel beam is connected with the I-shaped steel beam section on the upper part of the two T-shaped steel columns, and the operator then connects four connecting plates to the upper part of the T-shaped steel column and the end of the spliced ​​I-shaped steel beam in the air, and finally fixes it by through-bolts, thereby completing the splicing work of the spliced ​​I-shaped steel beam between the two T-shaped steel columns with a large span; since the splicing and connection work is carried out at high altitude, the operating platform is limited, and each steel plate connecting plate weighs about 20 kilograms, it is difficult for the operator at high altitude to operate when leaning over, which makes the positioning of the connecting plate very difficult and the operation risk factor is also high; how to develop an efficient and convenient positioning tooling and positioning connection method for the splicing of T-shaped steel columns and spliced ​​I-shaped steel beams has become a problem that urgently needs to be solved on the construction site. Summary of the invention

[0003] The invention provides a positioning tool for splicing a steel beam between the top ends of two T-shaped steel columns, which solves the technical problem of how to develop an efficient and convenient positioning tool for a connecting plate for splicing a T-shaped steel column and an I-shaped steel beam.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The overall concept of the present invention is as follows: since the bolt connection holes on the web of the horizontal I-beam section at the top of the T-steel column, the connection bolt holes on the webs at both ends of the spliced ​​I-beam, and the bolt holes on the connection plate are all pre-jointed and processed on the ground, the aerial installation and splicing is performed only after this work is completed; the present invention makes full use of the above process characteristics, and moves the traditional aerial splicing of the connection plate and the spliced ​​I-beam to the ground, so that the bolt holes on the connection plate and the bolt holes at both ends of the spliced ​​I-beam are accurately joined and in place, and before the spliced ​​I-beam is hoisted, the pre-positioning pins are pre-connected in the connection bolt holes on the webs at both ends of the spliced ​​I-beam on the ground, and then the front and rear connection plates are positioned and connected to the two ends of the pre-positioning pins, and Make the distance between the front and rear connecting plates larger than the width of the upper and lower flange plates of the spliced ​​I-beam; hoist the spliced ​​I-beam with four pre-positioned connecting plates to the top of the spliced ​​I-beam, and then lift it vertically downward to dock it between the horizontal I-beam sections at the top of two adjacent T-steel columns; then, using the four pre-positioning pins as guides, move the four connecting plates between the web of the horizontal I-beam section at the top of the T-steel column and the web of the spliced ​​I-beam, thereby achieving accurate docking of the bolt holes on the connecting plates with the bolt connection holes on the web of the horizontal I-beam section at the top of the T-steel column and the connection bolt holes on the webs at both ends of the spliced ​​I-beam in the air, greatly reducing the difficulty and work intensity of the operator's docking in the air.

[0006] A positioning tool for splicing a steel beam between the tops of two T-shaped steel columns, comprising a left T-shaped steel column and a right T-shaped steel column, a right horizontal I-shaped steel beam section is arranged at the top of the left T-shaped steel column, and a right horizontal I-shaped steel beam section connecting screw holes are arranged in an array on the web plate at the right end of the right horizontal I-shaped steel beam section, a left horizontal I-shaped steel beam section is arranged at the top of the right T-shaped steel column, and a left horizontal I-shaped steel beam section connecting screw holes are arranged in an array on the web plate at the left end of the left horizontal I-shaped steel beam section, and a right horizontal I-shaped steel beam section and a left horizontal I-shaped steel beam section are connected. An I-shaped steel beam splicing space is provided between the I-shaped steel beam sections, an I-shaped steel beam is spliced ​​in the I-shaped steel beam splicing space, a left end connecting screw hole of the I-shaped steel beam is arranged in an array on the web plate at the left end of the I-shaped steel beam, and a right end connecting screw hole of the I-shaped steel beam is arranged in an array on the web plate at the right end of the I-shaped steel beam. A pre-positioning pin is inserted into the left end connecting screw hole of the I-shaped steel beam arranged in an array, a front end external thread of the pin is provided at the front end of the pre-positioning pin, a rear end external thread of the pin is provided at the rear end of the pre-positioning pin, and the front end external thread of the pin and the pin are connected. The pre-positioning pin column between the rear end external threads is respectively provided with a left front connecting plate positioning pin hole, a front positioning pin hole for the left end web of the I-beam steel beam, a rear positioning pin hole for the left end web of the I-beam steel beam and a left rear connecting plate positioning pin hole; the left end web of the I-beam steel beam is connected between the front positioning pin hole for the left end web of the I-beam steel beam and the rear positioning pin hole for the left end web of the I-beam steel beam, the front positioning cotter pin for the left end web of the I-beam steel beam is movably connected in the front positioning pin hole for the left end web of the I-beam steel beam, and the rear positioning pin for the left end web of the I-beam steel beam is movably connected in the rear positioning pin hole for the left end web of the I-beam steel beam Positioning cotter pin; a left front connecting plate is inserted between the external thread at the front end of the pin column and the positioning pin hole of the left front connecting plate, a left front connecting plate positioning cotter pin is movably inserted into the positioning pin hole of the left front connecting plate, and a front positioning nut is screwed on the external thread at the front end of the pin column; a left rear connecting plate is arranged between the positioning pin hole of the left rear connecting plate and the external thread at the rear end of the pin column, a left rear connecting plate positioning cotter pin is movably inserted into the positioning pin hole of the left rear connecting plate, and a rear positioning nut is screwed on the external thread at the rear end of the pin column; the spacing between the left front connecting plate and the left rear connecting plate is greater than the width of the upper flange plate of the I-beam steel beam.

[0007] A front end T-shaped end is arranged at the front end of the pre-positioning pin, a front end wire rope passing hole is arranged on the front end T-shaped end, and a front end thin and soft steel wire rope is passed through the front end wire rope passing hole; a rear end T-shaped end is arranged at the rear end of the pre-positioning pin, a rear end wire rope passing hole is arranged on the rear end T-shaped end, and a rear end thin and soft steel wire rope is passed through the rear end wire rope passing hole; the left front connecting plate is provided with left front connecting plate screw holes arranged in an array, and the left rear connecting plate is provided with left rear connecting plate screw holes arranged in an array.

[0008] Fixing bolts are inserted between the corresponding left rear connecting plate screw holes, the right horizontal I-beam beam section connecting screw holes and the left front connecting plate screw holes that are butt-jointed.

[0009] A positioning method for a positioning tool for splicing a steel beam between the top ends of two T-shaped steel columns, characterized by the following steps:

[0010] The first step is to pre-process on the ground the right side horizontal I-shaped steel beam section connecting screw holes arranged in array on the right end web of the right side horizontal I-shaped steel beam section, the left end connecting screw holes arranged in array on the left end web of the I-shaped steel beam, the left rear connecting plate screw holes arranged in array on the left rear connecting plate, and the left front connecting plate screw holes arranged in array on the left front connecting plate, and after splicing the right side horizontal I-shaped steel beam section with the I-shaped steel beam on the ground, clamp the splicing seam with the left rear connecting plate and the left front connecting plate, so that the above screw holes can be connected together correspondingly;

[0011] Step 2: erect the left T-shaped steel column and the right T-shaped steel column on the construction site, and set an I-shaped steel beam splicing space between the right horizontal I-shaped steel beam section and the left horizontal I-shaped steel beam section;

[0012] Step 3: On the ground, the pre-positioning pin and the second pre-positioning pin are respectively inserted into the spaced holes in the array-arranged left end connecting screw holes of the I-beam on the left end web of the I-beam, and the rear positioning cotter pin of the left end web of the I-beam is movably inserted into the rear positioning pin hole of the left end web of the I-beam, and the front positioning cotter pin of the left end web of the I-beam is movably inserted into the front positioning pin hole of the left end web of the I-beam, so as to position the left end web of the I-beam at the middle position of the pre-positioning pin;

[0013] Step 4: flexibly insert the left front connecting plate positioning cotter pin into the positioning pin hole of the left front connecting plate, insert the left front connecting plate into the front end of the pre-positioning pin, screw the front positioning nut on the external thread at the front end of the pin, and position the left front connecting plate at the front end of the pre-positioning pin; flexibly insert the left rear connecting plate positioning cotter pin into the positioning pin hole of the left rear connecting plate, insert the left rear connecting plate into the rear end of the pre-positioning pin, screw the rear positioning nut on the external thread at the rear end of the pin, and position the left rear connecting plate at the rear end of the pre-positioning pin; use the same method to connect the second pre-positioning pin to the left rear connecting plate and the left front connecting plate;

[0014] Step 5. Repeat the steps of step 3 and step 4 to connect another two connecting plates to the web plate at the right end of the I-shaped steel beam, so that the I-shaped steel beam is pre-connected and positioned with the four connecting plates on the ground, and the left part of the left rear connecting plate and the left part of the left front connecting plate form a left vertical groove on the outside of the left end of the I-shaped steel beam, and the right vertical groove is formed on the outside of the right end of the I-shaped steel beam;

[0015] Step 6: Hoist the I-beam with four positioning plates to the top of the splicing space of the I-beam, so that the left vertical groove is set above the right end of the right horizontal I-beam section, and the right vertical groove is set above the left end of the left horizontal I-beam section;

[0016] Step 7: Use the hoisting equipment to lower the I-shaped steel beam and splice it between the right horizontal I-shaped steel beam section and the left horizontal I-shaped steel beam section to complete the aerial docking of the I-shaped steel beam;

[0017] Step 8. Remove the left front connecting plate positioning cotter pin, the front positioning cotter pin of the web at the left end of the I-beam, the rear positioning cotter pin of the web at the left end of the I-beam and the positioning cotter pin of the left rear connecting plate. Use the same method to remove all the positioning cotter pins on the second pre-positioning pin column; use the pre-positioning pin column and the second pre-positioning pin column as guide rails to push the left rear connecting plate forward horizontally, so that the left rear connecting plate, the web of the I-beam and the right horizontal I-beam section are close together, and push the left front connecting plate backward horizontally, so that the left front connecting plate, the web of the I-beam and the right horizontal I-beam section are close together, so as to achieve accurate docking of the screw holes on the two connecting plates with the screw holes on the web of the right horizontal I-beam section and the screw holes on the web of the I-beam; use the same method to dock the two connecting plates at the right end of the I-beam on the web of the left horizontal I-beam section and the web of the I-beam;

[0018] Step 9: Insert fixing bolts between the corresponding screw holes of the left rear connecting plate, the connecting screw holes of the right horizontal I-beam steel beam section and the screw holes of the left front connecting plate, and fix the I-beam steel beam with the right horizontal I-beam steel beam section and the left horizontal I-beam steel beam section together;

[0019] Step 10. Remove the front positioning nuts and rear positioning nuts, pull out the pre-positioning pins through the thin and soft steel wire rope at the front end, and replace them with fixing bolts to complete the aerial splicing and fixing of the I-beam steel beam.

[0020] The present invention can efficiently and quickly complete the connection of a large-span spliced ​​I-shaped steel beam and two adjacent T-shaped steel columns according to the conditions of the construction site. The large-span spliced ​​H-shaped steel beam lifting auxiliary tool is easy to make and convenient to install and disassemble, and the pre-positioning installation of the connecting plate is realized, which avoids the parallel movement and frequent disassembly of the connecting plate during the installation process, and can adapt to the reliable assembly of connecting plates of different sizes on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 It is a schematic structural diagram of two adjacent T-shaped steel columns of the present invention;

[0023] Figure 3It is a schematic structural diagram of an I-shaped steel beam 29 of the present invention;

[0024] Figure 4 It is a diagram showing the matching relationship between the I-shaped steel beam 29 and the four connecting plates of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure of the pre-positioning pin 8 of the present invention;

[0026] Figure 6 It is a pre-positioning relationship diagram of the pre-positioning pin 8 of the present invention, the I-shaped steel beam 29 and the two connecting plates;

[0027] Figure 7 It is a schematic diagram of the structure when the I-shaped steel beam 29 is hoisted at high altitude;

[0028] Figure 8 It is a schematic diagram of the structure after the I-shaped steel beam 29 and two T-shaped steel columns are spliced ​​together. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with embodiments:

[0030] A positioning tool for splicing a steel beam between the tops of two T-shaped steel columns, comprising a left T-shaped steel column 1 and a right T-shaped steel column 2, a right horizontal I-shaped steel beam section 3 is arranged at the top of the left T-shaped steel column 1, and a right horizontal I-shaped steel beam section connecting screw holes 4 are arranged in an array on the web plate at the right end of the right horizontal I-shaped steel beam section, a left horizontal I-shaped steel beam section 5 is arranged at the top of the right T-shaped steel column 2, and a left horizontal I-shaped steel beam section connecting screw holes 6 are arranged in an array on the web plate at the left end of the left horizontal I-shaped steel beam section, and a tool is arranged between the right horizontal I-shaped steel beam section 3 and the left horizontal I-shaped steel beam section 5. I-shaped steel beam splicing space 7, in which an I-shaped steel beam splicing space 7 is spliced, an I-shaped steel beam 29 is spliced, an I-shaped steel beam left end connecting screw hole 31 is arranged in an array on the web plate of the left end of the I-shaped steel beam 29, and an I-shaped steel beam right end connecting screw hole 32 is arranged in an array on the web plate of the right end of the I-shaped steel beam 29, a pre-positioning pin 8 is inserted in the array-arranged I-shaped steel beam left end connecting screw hole 31, a pin front end external thread 9 is provided at the front end of the pre-positioning pin 8, a pin rear end external thread 23 is provided at the rear end of the pre-positioning pin 8, and a pre-positioning pin between the pin front end external thread 9 and the pin rear end external thread 23 The positioning pin column 8 is respectively provided with a left front connecting plate positioning pin hole 14, a front positioning pin hole 16 of the left end web of the I-beam steel beam, a rear positioning pin hole 18 of the left end web of the I-beam steel beam and a left rear connecting plate positioning pin hole 20; the left end web of the I-beam steel beam 29 is connected between the front positioning pin hole 16 of the left end web of the I-beam steel beam and the rear positioning pin hole 18 of the left end web of the I-beam steel beam, the front positioning cotter pin 17 of the left end web of the I-beam steel beam is movably connected in the front positioning pin hole 16 of the left end web of the I-beam steel beam, and the rear positioning cotter pin 19 of the left end web of the I-beam steel beam is movably connected in the rear positioning pin hole 18 of the left end web of the I-beam steel beam; A left front connecting plate 28 is connected between the end external thread 9 and the left front connecting plate locating pin hole 14, a left front connecting plate locating cotter pin 15 is movably connected in the left front connecting plate locating pin hole 14, and a front positioning nut 13 is screwed on the front end external thread 9 of the pin column; a left rear connecting plate 27 is arranged between the left rear connecting plate locating pin hole 20 and the rear end external thread 23 of the pin column, a left rear connecting plate locating cotter pin 21 is movably connected in the left rear connecting plate locating pin hole 20, and a rear positioning nut 22 is screwed on the rear end external thread 23 of the pin column; the spacing between the left front connecting plate 28 and the left rear connecting plate 27 is greater than the width of the upper flange plate of the I-beam steel beam 29.

[0031] A front end T-shaped terminal 10 is provided at the front end of the pre-positioning pin 8, a front end wire rope connection hole 11 is provided on the front end T-shaped terminal 10, and a front end soft steel wire rope 12 is connected through the front end wire rope connection hole 11; a rear end T-shaped terminal 24 is provided at the rear end of the pre-positioning pin 8, a rear end wire rope connection hole 25 is provided on the rear end T-shaped terminal 24, and a rear end soft steel wire rope 26 is connected through the rear end wire rope connection hole 25; left front connecting plate screw holes 34 are arranged in an array on the left front connecting plate 28, and left rear connecting plate screw holes 33 are arranged in an array on the left rear connecting plate 27.

[0032] A fixing bolt 35 is inserted between the corresponding left rear connecting plate screw hole 33, the right horizontal I-beam steel beam section connecting screw hole 4 and the left front connecting plate screw hole 34 that are butt-joined together; the present invention essentially pre-joins and positions the I-beam steel beam 29, the left T-shaped steel column 1 and the right T-shaped steel column 2 on the ground in advance, and in this process, the connecting plate is first positioned away from the web through four pre-positioning pins; then, the left T-shaped steel column 1 and the right T-shaped steel column 2 are first erected on the construction site, and then, the I-beam steel beam 29 with the four pre-positioned connecting plates is hoisted into the air for splicing. The present invention creatively invents the structure and use method of the pre-positioning pins, which greatly facilitates the accurate docking of the screw holes on the high-altitude connecting plate with the screw holes on the two webs, thereby accelerating the construction progress.

[0033] A positioning method for a positioning tool for splicing a steel beam between the top ends of two T-shaped steel columns, characterized by the following steps:

[0034] The first step is to pre-process on the ground the right side horizontal I-shaped steel beam section 4 on the right end web plate, the right side horizontal I-shaped steel beam section connecting screw holes 4 arranged in array on the right end web plate, the I-shaped steel beam left end connecting screw holes 31 arranged in array on the left end web plate of the I-shaped steel beam 29, the left rear connecting plate screw holes 33 arranged in array on the left rear connecting plate 27, and the left front connecting plate screw holes 34 arranged in array on the left front connecting plate 28, and after splicing the right side horizontal I-shaped steel beam section 4 with the I-shaped steel beam 29 on the ground, clamp the splicing seam with the left rear connecting plate 27 and the left front connecting plate 28, so that the above screw holes can be connected together correspondingly;

[0035] Step 2: erect the left T-shaped steel column 1 and the right T-shaped steel column 2 on the construction site, and set an I-shaped steel beam splicing space 7 between the right horizontal I-shaped steel beam section 3 and the left horizontal I-shaped steel beam section 5;

[0036] Step 3: On the ground, the pre-positioning pin 8 and the second pre-positioning pin 30 are respectively inserted into the spaced holes in the array-arranged I-beam left end connecting screw holes 31 on the left end web of the I-beam 29, and the rear positioning cotter pin 19 of the left end web of the I-beam is movably inserted into the rear positioning pin hole 18 of the left end web of the I-beam, and the front positioning cotter pin 17 of the left end web of the I-beam is movably inserted into the front positioning pin hole 16 of the left end web of the I-beam, so as to position the left end web of the I-beam 29 at the middle position of the pre-positioning pin 8;

[0037] Step 4: flexibly connect the left front connecting plate positioning cotter pin 15 in the left front connecting plate positioning pin hole 14, connect the left front connecting plate 28 to the front end of the pre-positioning pin 8, screw the front positioning nut 13 on the front end external thread 9 of the pin, and position the left front connecting plate 28 at the front end of the pre-positioning pin 8; flexibly connect the left rear connecting plate positioning cotter pin 21 in the left rear connecting plate positioning pin hole 20, connect the left rear connecting plate 27 to the rear end of the pre-positioning pin 8, screw the rear positioning nut 22 on the rear end external thread 23 of the pin, and position the left rear connecting plate 28 at the rear end of the pre-positioning pin 8; use the same method to connect the second pre-positioning pin 30 to the left rear connecting plate 27 and the left front connecting plate 28;

[0038] Step 5: Repeat the steps of step 3 and step 4 to connect another two connecting plates to the web plate at the right end of the I-shaped steel beam 29, so that the I-shaped steel beam 29 is pre-connected and positioned with the four connecting plates on the ground, and a left vertical groove 36 is formed on the outer side of the left end of the I-shaped steel beam 29, the left part of the left rear connecting plate 27 and the left part of the left front connecting plate 28, and a right vertical groove 37 is formed on the outer side of the right end of the I-shaped steel beam 29;

[0039] Step 6: hoist the I-shaped steel beam 29 with four positioning plates to the top of the I-shaped steel beam splicing space 7, so that the left vertical groove 36 is arranged above the right end of the right horizontal I-shaped steel beam section 4, and the right vertical groove 37 is arranged above the left horizontal I-shaped steel beam section 5;

[0040] Step 7: Use the hoisting equipment to lower the I-shaped steel beam 29 and splice it between the right horizontal I-shaped steel beam section 3 and the left horizontal I-shaped steel beam section 5 to complete the aerial docking of the I-shaped steel beam 29;

[0041] Step 8: Remove the left front connecting plate positioning cotter pin 15, the front positioning cotter pin 17 of the left end web of the I-shaped steel beam, the rear positioning cotter pin 19 of the left end web of the I-shaped steel beam and the left rear connecting plate positioning cotter pin 21. Use the same method to remove all the positioning cotter pins on the second pre-positioning pin 30. Use the pre-positioning pin 8 and the second pre-positioning pin 30 as guides to push the left rear connecting plate 27 forward so that the left rear connecting plate 27 is aligned with the web of the I-shaped steel beam 29 and the right horizontal work The left front connecting plate 28 is pushed backwards to make the left front connecting plate 28 close to the web of the I-shaped steel beam 29 and the right horizontal I-shaped steel beam section 3, so that the screw holes on the two connecting plates are accurately connected with the screw holes on the web of the right horizontal I-shaped steel beam section 3 and the screw holes on the web of the I-shaped steel beam 29; in the same way, the two connecting plates at the right end of the I-shaped steel beam 29 are connected to the web of the left horizontal I-shaped steel beam section 5 and the web of the I-shaped steel beam 29;

[0042] Step 9: Insert the fixing bolts 35 between the corresponding left rear connecting plate screw holes 33, the right horizontal I-shaped steel beam section connecting screw holes 4 and the left front connecting plate screw holes 34, and fix the I-shaped steel beam 29 with the right horizontal I-shaped steel beam section 3 and the left horizontal I-shaped steel beam section 5;

[0043] Step 10: Remove the front positioning nut 13 and the rear positioning nut 22, pull out the pre-positioning pin 8 through the front soft wire rope 12, and replace it with the fixing bolt 35 to complete the aerial splicing and fixing work of the I-shaped steel beam 29.

Claims

1. A positioning tool for splicing a steel beam between the top ends of two T-shaped steel columns, comprising a left T-shaped steel column (1) and a right T-shaped steel column (2), wherein a right horizontal I-shaped steel beam section (3) is arranged at the top end of the left T-shaped steel column (1), and a right horizontal I-shaped steel beam section connecting screw holes (4) are arranged in an array on the web plate at the right end of the right horizontal I-shaped steel beam section, and a left horizontal I-shaped steel beam section (5) is arranged at the top end of the right T-shaped steel column (2), and an array is arranged on the web plate at the left end of the left horizontal I-shaped steel beam section. A left horizontal I-beam steel beam section connection screw hole (6) is arranged, an I-beam steel beam splicing space (7) is provided between the right horizontal I-beam steel beam section (3) and the left horizontal I-beam steel beam section (5), an I-beam steel beam (29) is spliced ​​in the I-beam steel beam splicing space (7), an I-beam steel beam (29) is spliced, an I-beam steel beam left end connection screw hole (31) is arranged in an array on the left end web of the I-beam steel beam (29), and an I-beam steel beam right end connection screw hole (32) is arranged in an array on the right end web of the I-beam steel beam (29), characterized in that: A pre-positioning pin (8) is inserted into a connecting screw hole (31) at the left end of an I-shaped steel beam arranged in an array, a pin front end external thread (9) is provided at the front end of the pre-positioning pin (8), a pin rear end external thread (23) is provided at the rear end of the pre-positioning pin (8), and left front connecting plate positioning pin holes (14) are respectively provided on the pre-positioning pin (8) between the pin front end external thread (9) and the pin rear end external thread (23). ), a front locating pin hole (16) on the left end web of the I-beam steel beam, a rear locating pin hole (18) on the left end web of the I-beam steel beam, and a locating pin hole (20) on the left rear connecting plate; between the front locating pin hole (16) on the left end web of the I-beam steel beam and the rear locating pin hole (18) on the left end web of the I-beam steel beam, a left end web of the I-beam steel beam (29) is inserted; and a front locating pin hole (16) on the left end web of the I-beam steel beam is movably inserted into the front locating pin hole (16) on the left end web of the I-beam steel beam. A split pin (17) is movably connected to a rear positioning pin hole (18) of the web of the left end of the I-shaped steel beam, and a positioning split pin (19) of the web of the left end of the I-shaped steel beam is movably connected thereto; a left front connecting plate (28) is connected between the front end external thread (9) of the pin column and the positioning pin hole (14) of the left front connecting plate, and a left front connecting plate positioning split pin (15) is movably connected to the positioning pin hole (14) of the left front connecting plate, and a front positioning nut (28) is screwed onto the front end external thread (9) of the pin column. 13); a left rear connecting plate (27) is arranged between the left rear connecting plate positioning pin hole (20) and the rear end external thread (23) of the pin column, a left rear connecting plate positioning cotter pin (21) is movably inserted into the left rear connecting plate positioning pin hole (20), and a rear positioning nut (22) is screwed onto the rear end external thread (23) of the pin column; the spacing between the left front connecting plate (28) and the left rear connecting plate (27) is greater than the width of the upper flange plate of the I-shaped steel beam (29).

2. A positioning tool for splicing steel beams between the top ends of two T-shaped steel columns according to claim 1, characterized in that: A front end T-shaped end (10) is provided at the front end of the pre-positioning pin (8), a front end steel wire rope insertion hole (11) is provided on the front end T-shaped end (10), and a front end soft steel wire rope (12) is inserted into the front end steel wire rope insertion hole (11); a rear end T-shaped end (24) is provided at the rear end of the pre-positioning pin (8), a rear end steel wire rope insertion hole (25) is provided on the rear end T-shaped end (24), and a rear end soft steel wire rope (26) is inserted into the rear end steel wire rope insertion hole (25); left front connecting plate screw holes (34) are arranged in an array on the left front connecting plate (28), and left rear connecting plate screw holes (33) are arranged in an array on the left rear connecting plate (27).

3. A positioning tool for splicing steel beams between the top ends of two T-shaped steel columns according to claim 1 or 2, characterized in that: A fixing bolt (35) is inserted between the corresponding left rear connecting plate screw hole (33), the right horizontal I-beam beam section connecting screw hole (4) and the left front connecting plate screw hole (34) that are butt-jointed.

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